PDB-8uo2: CryoEM structure of beta-2-adrenergic receptor in complex with GT...

基本情報

• 登録情報: データベース: PDB / ID: 8uo2
• タイトル: CryoEM structure of beta-2-adrenergic receptor in complex with GTP-bound Gs heterotrimer (Class R)

要素

• (Guanine nucleotide-binding protein ...) x 3
• Beta-2 adrenergic receptor

• キーワード: SIGNALING PROTEIN / GPCR / Adrenergic / Receptor / G protein

機能・相同性

分子機能:

: / beta2-adrenergic receptor activity / positive regulation of mini excitatory postsynaptic potential / positive regulation of cAMP-dependent protein kinase activity / norepinephrine binding / Adrenoceptors / heat generation / positive regulation of autophagosome maturation / positive regulation of AMPA receptor activity / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / activation of transmembrane receptor protein tyrosine kinase activity / negative regulation of smooth muscle contraction / positive regulation of lipophagy / response to psychosocial stress / negative regulation of multicellular organism growth / adrenergic receptor signaling pathway / endosome to lysosome transport / diet induced thermogenesis / neuronal dense core vesicle / positive regulation of protein kinase A signaling / PKA activation in glucagon signalling / hair follicle placode formation / adenylate cyclase binding / smooth muscle contraction / mu-type opioid receptor binding / developmental growth / corticotropin-releasing hormone receptor 1 binding / intracellular transport / potassium channel regulator activity / D1 dopamine receptor binding / Hedgehog 'off' state / positive regulation of bone mineralization / brown fat cell differentiation / beta-2 adrenergic receptor binding / adenylate cyclase-activating adrenergic receptor signaling pathway / regulation of sodium ion transport / bone resorption / activation of adenylate cyclase activity / adenylate cyclase activator activity / response to cold / receptor-mediated endocytosis / trans-Golgi network membrane / ionotropic glutamate receptor binding / insulin-like growth factor receptor binding / clathrin-coated endocytic vesicle membrane / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / bone development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / positive regulation of protein serine/threonine kinase activity / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / platelet aggregation / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to amyloid-beta / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / sensory perception of smell / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / Cargo recognition for clathrin-mediated endocytosis / GTPase binding / retina development in camera-type eye / Clathrin-mediated endocytosis / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / positive regulation of cold-induced thermogenesis / amyloid-beta binding

ドメイン・相同性:

Beta 2 adrenoceptor / Adrenoceptor family / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase

構成要素:

Chem-G1I / GUANOSINE-5'-TRIPHOSPHATE / Beta-2 adrenergic receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

• 生物種: Homo sapiens (ヒト)
• 手法: 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.6 Å
• データ登録者: Papasergi-Scott, M.M. / Skiniotis, G.

資金援助

米国, 2件

組織	認可番号	国
Other government
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)		米国

• 引用: ジャーナル: Nature / 年: 2024; タイトル: Time-resolved cryo-EM of G-protein activation by a GPCR.; 著者: Makaía M Papasergi-Scott / Guillermo Pérez-Hernández / Hossein Batebi / Yang Gao / Gözde Eskici / Alpay B Seven / Ouliana Panova / Daniel Hilger / Marina Casiraghi / Feng He / Luis Maul / Peter Gmeiner / Brian K Kobilka / Peter W Hildebrand / Georgios Skiniotis / ; 要旨: G-protein-coupled receptors (GPCRs) activate heterotrimeric G proteins by stimulating guanine nucleotide exchange in the Gα subunit. To visualize this mechanism, we developed a time-resolved cryo-EM approach that examines the progression of ensembles of pre-steady-state intermediates of a GPCR-G-protein complex. By monitoring the transitions of the stimulatory G protein in complex with the β-adrenergic receptor at short sequential time points after GTP addition, we identified the conformational trajectory underlying G-protein activation and functional dissociation from the receptor. Twenty structures generated from sequential overlapping particle subsets along this trajectory, compared to control structures, provide a high-resolution description of the order of main events driving G-protein activation in response to GTP binding. Structural changes propagate from the nucleotide-binding pocket and extend through the GTPase domain, enacting alterations to Gα switch regions and the α5 helix that weaken the G-protein-receptor interface. Molecular dynamics simulations with late structures in the cryo-EM trajectory support that enhanced ordering of GTP on closure of the α-helical domain against the nucleotide-bound Ras-homology domain correlates with α5 helix destabilization and eventual dissociation of the G protein from the GPCR. These findings also highlight the potential of time-resolved cryo-EM as a tool for mechanistic dissection of GPCR signalling events.

履歴

登録	2023年10月19日	登録サイト: RCSB / 処理サイト: RCSB
改定 1.0	2024年3月6日	Provider: repository / タイプ: Initial release
改定 1.1	2024年3月13日	Group: Database references / カテゴリ: citation / citation_author / Item: _citation.pdbx_database_id_DOI
改定 1.2	2024年3月27日	Group: Database references / カテゴリ: citation / citation_author Item: _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
改定 1.3	2024年6月12日	Group: Database references / カテゴリ: citation Item: _citation.journal_volume / _citation.page_first / _citation.page_last